i think i may be able to offer a solution to this. i came across the same problem when trying to build an auto reloader for my missile launcher that worked with a laser designator (it recieved a signal when power was sent to refil the launcher.) The solution to this is to update the redstone next to the logistics wire. i did this by setting it up so that when the logistiscs wire sent a redstone signal it set of a redstone clock that activated a stickypiston attached to a block right next to the Lwire.
hope this helps